get tossed for the same reason. There is no safe inch to cut around.
Even with a solid block, some situations override the one-inch rule. Pitch the whole thing if the mold is extensive rather than a small spot, if there is a sour or ammonia-like smell, or if you honestly can’t remember how long it has been sitting there. If you’re the type who stashes a block and forgets it, you already know the feeling. When storage is a mystery, check before you assume it is just a harmless